钙离子通道是一个大分子的跨膜蛋白质，在心肌细胞的静息电位和动作电位的形成中起着非常重要的作用。不同来源的组织中均存在着钾离子通道，它们之间除了结构上的不同外，也存在着功能上的差异。不同进化程度、不同种系动物的电压依赖性钾离子通道在结构上也有很大的不同... The calcium channel is a macromolecular transmembrane protein that plays a very important role in the cardiomyocyte resting and action potentials. There are also potassium channels in tissues from different sources. In addition to the structural differences between them, there are also functional differences. Different degrees of evolution, different species of animal voltage-dependent potassium channels in the structure is also very different ...